Emerson Liebert Deluxe System 3 DX Installation guide

Precision Cooling

For Business-Critical Continuity

Liebert Deluxe System/3™ - DX

Installation Manual - 50 and 60 Hz, 6-30 Ton DX Systems (DH/DE/VH/VE)

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TABLE OF CONTENTS

PRODUCT MODEL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .V

1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.1 System Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1.1 Compressorized Two-Step Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1.2 Compressorized Four-Step Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1.3 GLYCOOL™ (Chilled Glycol Cooling) Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.1.4 Dual Source Cooling Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.0 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

2.1 Room Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2 Location Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.3 Unit Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.4 Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.4.1 Drain Line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.4.2 Piping Considerations for Raised-Floor Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.5 Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.6 Air Distribution Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.6.1 Raised-Floor Air Flow Distribution Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.6.2 Upflow Systems Additional Installation Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.6.3 Ducted Application Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.6.4 Plenum Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.6.5 Filter Box Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.0 AIR COOLED MODELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

3.1 Condenser Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.1.1 Outdoor Prop Fan Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.1.2 Indoor Piggyback Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.2 Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.2.1 High Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.2.2 Low Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.2.3 Lee-Temp/Flood Back Head Pressure Control Condensers (Standard on Piggyback Models) 19

3.3 Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.4 Fan Speed Control Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.4.1 Materials Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.4.2 Dehydration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.4.3 Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.5 Lee-Temp/Flood Back Head Pressure Control Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

3.5.1 Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

3.5.2 Materials Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

3.5.3 Dehydration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

3.5.4 Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

3.5.5 Refrigerant Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

4.0 GLYCOL COOLED/GLYCOOL™ MODELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

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4.1 Drycooler Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4.1.1 Outdoor Prop Fan Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4.1.2 Indoor Piggyback Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4.2 Drycooler Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4.3 Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4.3.1 High Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4.3.2 Low Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4.3.3 Pump And Drycooler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4.4 Glycol Piping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4.5 Preparation of Glycol Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

5.0 WATER COOLED MODELS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

5.1 Piping Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

5.2 Condenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

5.3 Water Regulating Valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

5.3.1 Testing Valve Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

5.3.2 Manual Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

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FIGURES

Figure 1 Downflow (DH and DE models) cabinet and floor planning dimensional data . . . . . . . . . . . . . . . . 4

Figure 2 Upflow 6, 8 and 10 ton (VH and VE models) cabinet and floor planning dimensional data . . . . . 6

Figure 3 Upflow 6, 8 and 10 ton (VH and VE models) blower duct and deck dimensional data . . . . . . . . . . 7

Figure 4 Upflow 15, 20 and 22 ton (VH and VE models) cabinet and floor planning dimensional data . . . 8

Figure 5 Upflow 15, 20 and 22 ton (VH and VE models) blower duct and deck dimensional data . . . . . . . . 9

Figure 6 Upflow 30 ton (VH and VE models) cabinet and floor planning dimensional data. . . . . . . . . . . . 10

Figure 7 Upflow 30 ton (VH and VE models) blower duct and deck dimensional data . . . . . . . . . . . . . . . . 11

Figure 8 Electrical connection details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 9 Electrical field connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 10 Ducting configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 11 Plenum dimensional data for 6 - 22 ton models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 12 Plenum dimensional data for 30 ton models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 13 Piping: Fan speed control condensers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 14 Piping: Lee-Temp control condensers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 15 Downflow air cooled (DH) piping connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 16 Upflow air cooled (VH) piping connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 17 Outdoor air cooled 1-4 fan condenser cabinet and anchor dimensional data . . . . . . . . . . . . . . . . 25

Figure 18 Outdoor air cooled 6 and 8 fan condenser cabinet and anchor dimensional data . . . . . . . . . . . . . 27

Figure 19 Air cooled model general arrangement diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Figure 20 Piggyback condenser cabinet and floor planning dimensional data . . . . . . . . . . . . . . . . . . . . . . . 29

Figure 21 Piggyback condenser piping connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 22 Lee-Temp control condenser. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Figure 23 Lee-Temp control typical general arrangement diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Figure 24 Downflow glycol cooled (DH) piping connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Figure 25 Upflow glycol cooled (VH) piping connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Figure 26 Downflow GLYCOOL™ cooled (DE) piping connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Figure 27 Upflow GLYCOOL™ cooled (VE) piping connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Figure 28 1-4 fan drycooler cabinet and anchor dimensional data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Figure 29 6- and 8-fan drycooler cabinet and anchor dimensional data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Figure 30 Glycol general arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Figure 31 GLYCOOL™ general arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Figure 32 Water cooled general arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Figure 33 Downflow water cooled (DH) piping connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Figure 34 Upflow water cooled (VH) piping connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

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TABLES

Table i Model number designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Table ii Unit weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi

Table 1 Downflow (DH and DE models) dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Table 2 Upflow 6, 8 and 10 ton (VH and VE models) blower duct and deck dimensional data. . . . . . . . . . 7

Table 3 Upflow 15, 20 and 22 ton (VH and VE models) blower duct and deck dimensional data . . . . . . . . 9

Table 4 Upflow 15, 20 and 22 ton (VH and VE models) blower duct and deck dimensional data . . . . . . . 11

Table 5 Recommended free area ft2 (m2 for grilles or perforated panels at output velocities of 550

and 600 fpm (2.8 and 3.1 m/s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Table 6 Plenum dimensional data for 6 - 22 ton models, in. (mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 7 Plenum dimensional data for 30 ton models in. (mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Table 8 Recommended line sizes – O.D. copper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Table 9 Fan speed control condenser piping connection sizes - Cu OD. . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Table 10 Lee-Temp control condenser piping connection sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Table 11 Downflow air cooled (DH) piping connection sizes, inches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Table 12 Factory provided piping connection sizes, inches, upflow air cooled (VH). . . . . . . . . . . . . . . . . . . 24

Table 13 Outdoor air cooled 1-4 fan condenser physical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Table 14 Outdoor air cooled 6 and 8 fan condenser physical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Table 15 Refrigerant control settings psi (kPa) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Table 16 Piggyback condenser dimensional data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Table 17 Piggyback condenser piping connection dimensional data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Table 18 Piggyback condenser approximate refrigerant charges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Table 19 Liquid line charge lb/10 ft. (kg/.3m) R–22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Table 20 Refrigerant control settings for air cooled units psi (kPa) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Table 21 Indoor unit approximate refrigerant charge lb (kg.) R–22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Table 22 Outdoor condenser approximate refrigerant charge lb (kg) per circuit . . . . . . . . . . . . . . . . . . . . . 32

Table 23 Glycol concentration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Table 24 Refrigerant control settings for glycol cooled units—psi (kPa) . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Table 25 Deluxe glycol volume approximate gal. (l) max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Table 26 Volume in standard Type L copper piping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Table 27 Room dew point temperatures °F (°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Table 28 Downflow glycol cooled (DH) piping connection sizes, inches . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Table 29 Factory-provided piping connection sizes, inches, upflow glycol cooled (VH) . . . . . . . . . . . . . . . . 39

Table 30 Downflow GLYCOOL (DE) piping connection sizes, inches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Table 31 Upflow GLYCOOL (VE) piping connection sizes, inches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Table 32 Glycol pump data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Table 33 1-4 fan drycooler physical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Table 34 6- and 8-fan drycooler physical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Table 35 Refrigerant control settings for water cooled units—psi (kPa) . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Table 36 Downflow water cooled (DH) piping connection sizes, inches . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Table 37 Factory-provided piping connection sizes, inches, upflow water cooled (VH) . . . . . . . . . . . . . . . . 52

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PRODUCT MODEL INFORMATION

Equipment Inspection

Upon arrival of the unit, inspect all items for either visible or concealed damage. Damage should be

immediately reported to the carrier and a damage claim filed with a copy sent to Liebert or to your

sales representative.

Table i Model number designation

DH 245 A – A A E I

VH = Upflow DX Nominal

Capacity in

Thousand

BTU/H

A = Air

Cooled

U = 4 Step DX A = 460/3/60 A = Advanced

Micro-processor

0 = No

Reheat

0 = No

Humidifier

B = 575/3/60

DH = Downflow DX W = Water

Cooled

H = DX with

Hot gas

Bypass

C = 208/3/60 G = Advanced

Graphics

Micro-processor

E = Electric

Reheat

I = Infrared

Humidifier

D = 230/3/60

DE = Downflow DX

w/ Econ-O-

Coil

G = Glycol

Cooled

F = 380/3/50 H = Hot Water

Reheat

G = Steam Grid

Humidifier

G = 415/3/50

VE = Upflow DX

w/ Econ-O-

Coil

H = 230/3/50 G = Hot Gas

Reheat

S = Steam

Generating

Humidifier

J = 200/3/50

M = 380/415/3/50 T = Steam

Reheat

!WARNING

Installation and service of this equipment should be done only by qualified personnel who

have been specially trained in the installation of air conditioning equipment. Improper

installation could result in property damage, injury or loss of life.

!WARNING

Hazardous voltage! Always disconnect power before servicing.

!CAUTION

Evaporator unit requires drain connections and may also require water supply. Do not locate

directly above any equipment that could sustain water damage.

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vi

Table ii Unit weights

Capacity and Cooling Type Weight lbs (kg)

Air Cooled Models

DH/VH, 60 (50) Hz

75A 1205 (547)

114A (115A) 1425 (647)

125A (130A) 1440 (645)

199A 1840 (835)

245A 1960 (890)

290A 2025 (920)

380A 2160 (981)

Water Cooled Models

DH/VH, 60 (50) Hz

86W 1455 (661)

127W (128W) 1675 (761)

138W (143W) 1690 (768)

219W 2110 (957)

267W 2280 (1036)

315W 2345 (1065)

412W 2500 (1135)

Glycol Cooled Models

DH/VH, 60 (50) Hz

72G 1455 (661)

110G (111G) 1685 (765)

116G (121G 1700 (772)

192G 2130 (967)

240G 2300 (1045)

265G 2365 (1074)

363G 2530 (1148)

GLYCOOL Models

DE/VE, 60 (50) Hz

72G 1615 (733)

110G (111G) 1845 (837)

116G (121G) 1860 (844)

192G 2385 (1082)

240G 2555 (1159)

363G 2750 (1248)

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Introduction

1

1.0 INTRODUCTION

1.1 System Descriptions

Deluxe System/3 environmental control systems are available in several configurations. Each configu-

ration can operate with either Advanced Microprocessor Controls (AM), or Advanced Microprocessor

Controls with Graphics (AG). A brief description of each, including operational differences, can be

found below. Check model numbers to see what is supplied with your unit.

1.1.1 Compressorized Two-Step Systems

These systems may be air, water, or glycol cooled, depending on the heat rejection method selected.

Cooling

Two stages of mechanical refrigeration are available.

Heating

Three stages of electric reheat are standard; steam/hot water, hot gas (on water and glycol cooled sys-

tems) are optional.

Humidification

Infrared is standard. Steam grid and steam generating humidification are optional.

Dehumidification

These systems utilize the lag compressor.

1.1.2 Compressorized Four-Step Systems

The four-stage systems have all the features of a compressorized, two-stage system plus cylinder

unloaders on one head of each compressor. This permits the compressors to operate at a reduced level

and increases energy efficiency during low-load conditions. The system responds to an increasing

room load with either a two-step or a four-step process of increasing the unit's cooling.

Cooling

These systems have four stages of mechanical refrigeration:

a. Lead compressor at reduced capacity

b. Lead and lag compressors at reduced capacity

c. Lead compressor at full capacity; lag compressor at reduced capacity

d. Lead and lag compressors at full capacity

Heating

Three stages of electric reheat are standard; hot water/steam are optional.

Humidification

Infrared is standard; steam grid and steam generating humidification are optional.

Dehumidification.

These systems utilize the lag compressor.

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Introduction

2

1.1.3 GLYCOOL™ (Chilled Glycol Cooling) Systems

GLYCOOL systems have all of the features of a compressorized water or glycol system, plus a second

cooling coil that is connected into the water circuit. When fluid temperature is sufficiently low (below

room temperature), cooling is provided by circulating the fluid through the second cooling coil (flow is

controlled by a motorized valve.) This is then the primary cooling source, and it greatly reduces the

compressor operation.

Cooling

At lower fluid temperatures, the second cooling coil acts as the main cooling system. The motorized

valve opens proportionally to match the room load. At higher fluid temperatures, two or four stages of

mechanical refrigeration control the room load.

Heating

Three stages of electric reheat are standard.

Humidification

Infrared is standard; steam generating is optional

Dehumidification

These systems utilize the lag compressor.

1.1.4 Dual Source Cooling Systems

This system has all the features of a compressorized system but adds a second cooling coil that is con-

nected to a source of chilled water. This second coil is controlled by a modulating control valve. It is

the primary source of cooling and dehumidification so compressor operation is reduced.

Cooling

The second coil acts as the primary cooling system. A modulating valve opens proportionally in

response to the room load. Two and four stages of mechanical refrigeration as a secondary cooling sys-

tem at higher room loads.

Heating

Three stages of electric reheat are standard.

Humidification

Infrared is standard; steam generating is optional

Dehumidification

These systems utilize the chilled water valve, then the lag compressor if required by the load.

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Installation

3

2.0 INSTALLATION

2.1 Room Preparation

The room should be well-insulated and must have a sealed vapor barrier. The vapor barrier in the

ceiling can be a polyethylene film type. Use a rubber-base or plastic-base paint on concrete walls and

floors. Doors should not be undercut or have grilles in them.

Outside, or fresh, air should be kept to an absolute minimum. Outside air adds to the heating, cooling,

humidifying and dehumidifying loads of the site. It is recommended that outside air be kept below 5%

of the total air circulated in the room.

2.2 Location Considerations

For a downflow unit, the unit can sit on an accessible, elevated flooring system. It may be necessary to

furnish additional pedestal support below the unit to ensure maximum structural support. A separate

floor stand for the unit may be used as support, independent of the elevated floor and installed prior

to the flooring system.

For downflow and upflow units, provide approximately 34" (864mm) service clearance on the left,

right and in front of the unit whenever possible. The minimum space required for installation is 18"

(45.7 cm) on the left end, 18" (45.7 cm) on the right end, and 24" (61 cm) in front of the unit. This space

is necessary to permit routine maintenance, such as replacing filters, adjusting the fan speed and

cleaning the humidifier.

Avoid locating units in an alcove or at the extreme end of a room that has a high aspect ratio (long

narrow room). Also avoid locating units too close together. This tends to reduce the effectiveness of

the air distribution as compared to units located 30-40 feet (9-12m) apart.

NOTE

If high efficiency 6" filters are used, 25" (63.5 cm) is required on the right end for removal

and replacement of filters.

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Installation

4

2.3 Unit Dimensions

Figure 1 Downflow (DH and DE models) cabinet and floor planning dimensional data

UNIT DIMENSIONAL DATA

FLOOR CUTOUT DIMENSIONS

UNITS WITH

HIGH PRESSU RE VALVE

&

SHADED AREAS

INDICATE A RECOMMENDED

CLEARANCE OF 34 (864mm)

FOR COMPONENT ACCESS AND FILTER

REMOVAL. FOR RECOMMENDED

MINIMUM CLEARANCE, REFER

TO THE INSTALLATION MANUAL.

DPN000526 Rev0

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Installation

5

Table 1 Downflow (DH and DE models) dimensions

Air Cooled

Water Cooled

Glycol Cooled

GLYCOOL

Dimensional Data

inches (mm)

60 Hz 50 Hz A B C D E F G H J K L

DH75A

DH86W

DH72G

DE72G

DH75A

DH86W

DH72G

DE72G

74

(1880)

70

(1778)

35

(889)

32

(813)

72

(1829)

33

(838)

14-1/4

(362)

54-3/4

(1391)

35-5/8

(905)

63-1/2

1613

27

(686)

DH114A

DH127W

DH110G

DE110G

DH115A

DH128W

DH111G

DE111G

74

(1880)

70

(1778)

35

(889)

32

(813)

72

(1829)

33

(838)

14-1/4

(362)

54-3/4

(1391)

35-5/8

(905)

63-1/2

1613

27

(686)

DH125A

DH138W

DH116G

DE116G

DH130H

DH143W

DH121G

DE121G

74

(1880)

70

(1778)

35

(889)

32

(813)

72

(1829)

33

(838)

14-1/4

(362)

54-3/4

(1391)

35-5/8

(905)

63-1/2

1613

27

(686)

DH199A

DH219W

DH192G

DE192G

DH199A

DH219W

DH192G

DE192G

99

(2515)

95

(2413)

35

(889)

32

(813)

97

(2464)

33

(838)

16-1/4

(413)

77-3/4

(1975)

35-5/8

(905)

88-1/2

(2248)

27

(686)

DH245A

DH267W

DH240G

DE240G

DH245A

DH267W

DH240G

DE240G

99

(2515)

95

(2413)

35

(889)

32

(813)

97

(2464)

33

(838)

16-1/4

(413)

77-3/4

(1975)

35-5/8

(905)

88-1/2

(2248)

27

(686)

DH290A

DH315W

DH265G

DH290A

DH315W

DH265G

99

(2515)

99

(2515)

35

(889)

32

(813)

97

(2464)

33

(838)

16-1/4

(413)

77-3/4

(1975)

35-5/8

(905) -- --

DH380A

DH412W

DH363G

DE363G

DH380A

DH412W

DH363G

DE363G

122

(3098)

118

(2997)

35

(889)

32

(813)

120

(3048)

33

(838)

16-1/4

(413)

100-3/

4

(2559)

35-5/8

(905)

111-1/

2

(2832)

27

(686)

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Installation

6

Figure 2 Upflow 6, 8 and 10 ton (VH and VE models) cabinet and floor planning dimensional data

74" overall

(1880mm)

70" (1778mm)

Plenum Flange

32"

(838mm)

Plenum

Flange

35" overall

(889mm)

Projection of

Display Bezel

5/8" (16mm)

2" (51mm)

2"

(51mm)

1" (25.4mm)

72"

(1829mm)

72" base

(1829mm) 33" Base

(838mm)

Flange provided on

blower outlet for

supply air ducting

1" (25.4mm) flange

for decorative

plenum alignment

Air return

opening

Shaded areas indicate

a recommended

clearance of 34"

(864mm) for component

access and filter

removal

Air grille

supplied on

units with

front return

air only

4-1/2"

(114mm)

33"

(838mm)

72"

(1829mm)

69-3/4"

(1172mm)

69-3/4"

(1172mm)

Air return

opening

20-1/4"

(514mm)

11"

(279mm)

4"

(102mm)

2-1/8"

(54mm)

1-1/8"

(29mm)

FLOOR CUTOUT DIMENSIONS

Models With Bottom Return

DUCT CONNECTION DATA

Models With Rear Return

Floor Level

22"

(559mm)

UNIT DIMENSIONAL DATA

DPN000527 Rev0

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Installation

7

Figure 3 Upflow 6, 8 and 10 ton (VH and VE models) blower duct and deck dimensional data

Table 2 Upflow 6, 8 and 10 ton (VH and VE models) blower duct and deck dimensional data

Blower Supply

Motor

HP

Dimensional Data inches (mm)

ABCDF

VH075A

VH086W

VH072G

VE072G

15 x 15

TOP FRONT 1-5 22-7/8

(581)

3-1/2

(89)

18-13/16

(478)

16-3/16

(411)

1-1/2

(38)

TOP REAR 1-5 22-7/8

(581)

12-5/16

(313)

18-13/16

(478)

16-3/16

(411)

1-1/2

(38)

15 x 11

TOP FRONT 1-5 22-7/8

(581)

3-1/2

(89)

14-7/8

(378)

16-3/16

(411)

1-1/2

(38)

TOP REAR 1-5 22-7/8

(581)

12-5/16

(313)

14-7/8

(378)

16-3/16

(411)

1-1/2

(38)

12 x 9

TOP FRONT 1-5 22-7/8

(581)

5-7/8

(149)

12-7/16

(316)

13 3/4

(349)

1-1/2

(38)

TOP REAR 1-5 22-7/8

(581)

12-5/16

(313)

12-7/16

(316)

13 3/4

(349)

1-1/2

(38)

VH115A/VH114A

VH128W/VH127W

VH111G/VH110G

VE111G/VE110G

15 x 15

TOP FRONT 1.5-5 22-7/8

(581)

3-1/2

(89)

18-13/16

(478)

16-3/16

(411)

1-1/2

(38)

TOP REAR 1.5-5 22-7/8

(581)

12-5/16

(313)

18-13/16

(478)

16-3/16

(411)

1-1/2

(38)

15 x 11

TOP FRONT 2-7.5 22-7/8

(581)

3-1/2

(89)

14-7/8

(378)

16-3/16

(411)

1-1/2

(38)

TOP REAR

2-5 22-7/8

(581)

12-5/16

(313)

14-7/8

(378)

16-3/16

(411)

1-1/2

(38)

7.5 4 1/2

(114)

VH130A/VH125A

VH143W/VH138W

VH121G/VH116G

VE121G/VE116G

15 x 15

TOP FRONT 2-5 22-7/8

(581)

3-1/2

(89)

18-13/16

(478)

16-3/16

(411)

1-1/2

(38)

TOP REAR 2-5 22-7/8

(581)

12-5/16

(313)

18-13/16

(478)

16-3/16

(411)

1-1/2

(38)

15 x 11

TOP FRONT 3-10 22-7/8

(581)

3-1/2

(89)

14-7/8

(378)

16-3/16

(411)

1-1/2

(38)

TOP REAR

3-5 22-7/8

(581) 12-5/16

(313)

14-7/8

(378)

16-3/16

(411)

1-1/2

(38)

7.5-10 23 7/8

(606)

4 1/2

(114)

74" ref

(1880mm)

72" ref

(1829mm)

35" ref

(889mm)

AB

C

D

Blower Deck F

Top of Unit

Duct Flange on Blower

Front of Unit

Blower Duct Flange Location

Front or Rear Air Supply

DPN000528 Rev0

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Installation

8

Figure 4 Upflow 15, 20 and 22 ton (VH and VE models) cabinet and floor planning dimensional data

Air return

opening

5-1/2"

(140mm)

33"

(838mm)

97"

(2464mm)

94-3/4"

(2407mm)

1-1/8"

(29mm)

FLOOR CUTOUT DIMENSIONS

Models With Bottom Return

22"

(559mm)

Floor Level

1" (25.4mm) flange

for decorative

plenum alignment

94-3/4"

(2407mm)

Air

return

opening

24-1/4"

(616mm)

11"

(279mm)

2-1/8"

(54mm)

DUCT CONNECTION DATA

Models With Rear Return

99" overall

(2515mm)

95"

(2413mm)

Plenum Flange

32"

(838mm)

Plenum

Flange

35" overall

(889mm)

Projection of

Display Bezel

5/8" (16mm)

2"

(51mm)

2"

(51mm)

1"

(25.4mm)

76"

(1930mm)

97" Base

(2464mm) 33" Base

(838mm)

Shaded areas

indicate a

recommended

clearance of 34"

(864mm) for

component

access and filter

removal

Air grille

supplied on

units with

front return

air only

UNIT DIMENSIONAL DATA

4"

(102mm)

Flanges provided on

blower outlets for

supply air ducting

DPN000529 Rev0

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Installation

9

Figure 5 Upflow 15, 20 and 22 ton (VH and VE models) blower duct and deck dimensional data

Table 3 Upflow 15, 20 and 22 ton (VH and VE models) blower duct and deck dimensional data

Blower Supply

Motor

HP

Dimensional Data inches (mm)

A BCDE F

VH199A

VH219W

VH192G

VE192G

15 x 15

TOP

FRONT

3-7.5 20-3/8 (518) 3-1/2

(89)

18-13/16

(478)

16-3/16

(411)

12-11/16

(322) 1-1/2 (38)

10 22-7/8 (581)

TOP

REAR

3-5 20-3/8 (518) 12-5/16

(313)

18-13/16

(478)

16-3/16

(411)

12-11/16

(322) 1-1/2 (38)

7.5-10 25-3/8 (645) 10

(254) 4-1/2 (114)

15 x 11

TOP

FRONT

5-7.5 20-3/8 (518)

3-1/2

(89)

14-7/8

(378)

16-3/16

(411)

16-5/8

(422) 1-1/2 (38)

10 22-7/8 (581)

15 25-3/8 (645) 14-1/2

(368)

TOP

REAR

5 20-3/8 (518) 12-5/16

(313)

14-7/8

(378)

16-3/16

(411)

16 5/8

(422) 1-1/2 (38)

7.5-15 25-3/8 (645) 14 1/2

(368) 4-1/2 (114)

12 x 9

TOP

FRONT

7.5 20-3/8 (518)

5-7/8

(149)

12-7/16

(316)

13-3/4

(349)

22-3/4

(578) 1-1/2 (38)

10 22-7/8 (581)

15 25-3/8 (645) 18-5/8

(473)

TOP

REAR 7.5-15 25-3/8 (645) 12-5/16

(313)

12-7/16

(316)

13-3/4

(349)

18-5/8

(473) 4-1/2 (114)

VH245A

VH290A

VH267W

VH315W

VH240G

VH265G

VE240G

15 x 15

TOP

FRONT

5-7.5 20 3/8 (518) 3-1/2

(89)

18-13/16

(478)

16-3/16

(411)

12-11/16

(322) 1-1/2 (38)

10 22-7/8 (581)

TOP REAR 5 20 3/8 (518) 12-5/16

(313)

18-13/16

(478)

16-3/16

(411)

12-11/16

(322) 1-1/2 (38)

7.5-10 25 3/8 (645) 10 (254) 4 1/2 (114)

15 x 11

TOP

FRONT

7.5 20 3/8 (518)

3-1/2

(89)

14-7/8

(378)

16-3/16

(411)

16-5/8

(422) 1-1/2 (38)10 22-7/8 (581)

15 25 3/8 (645) 14-1/2

(368)

20 27 7/8 (708) 4 1/2 (114)

TOP

REAR

7.5-15 25 3/8 (645) 12-5/16

(313)

14-7/8

(378)

16-3/16

(411)

14-1/2

(368) 4-1/2(114)

20 27 7/8 (708)

Front or Rear Air Supply

TOP OF UNIT

Blower Deck

FRONT OF UNIT

Blower Duct Flange Location

Duct Flanges on Two Blower

76"

(1930.4mm)

ref.

35"

(889mm)

ref.

99" (2514.6) ref.

AB

CEC

D

F

DPN000530 Rev0

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10

Figure 6 Upflow 30 ton (VH and VE models) cabinet and floor planning dimensional data

UNIT DIMENSIONAL DATA

118"

(2997mm)

Plenum Flange

120"

(3048mm)

Base

33"

(838mm)

Air Return

Opening

113-1/2"

(2883mm)

120"

(3048mm)

Air Return

Opening

3-1/4"

(83mm)

24-1/4"

(616mm)

Floor Level

22"

(559mm)

DUCT CONNECTION DATA

Models With Rear Return

113-1/2"

(2883mm)

11"

(279mm)

4-1/4"

(108mm)

4"

(102mm)

1" (25.4mm) flange

for decorative

plenum alignment

Flanges provided on

blower outlets for

supply air ducting

5-1/2"

(140mm)

Shaded areas indicate a

recommended clearance

of 34" (864mm) for

component access and

filter removal

Air grille

supplied on

units with

front return

air only

2" (51mm)

Projection of

display bezel

5/8" (16mm)

2"

(51mm)

32"

(838mm)

Plenum

Flange

35"

(889mm)

Overall

122"

(3099mm)

Overall

33"

(838mm)

Base

76"

(1930mm)

1"

(25.4mm)

FLOOR CUTOUT DIMENSIONS

Models With Bottom Return

DPN00531 Rev0

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11

Figure 7 Upflow 30 ton (VH and VE models) blower duct and deck dimensional data

Table 4 Upflow 15, 20 and 22 ton (VH and VE models) blower duct and deck dimensional data

Blower Supply

Motor

HP

Dimensional Data inches (mm)

ABCDEFG

VH380A

VH412W

VH363G

VE363G

15 x 5

TOP

FRONT 10 22-7/8

(581)

3-1/2

(89)

18-13/16

(478)

16-3/16

(411)

10

(254)

1-1/2

(38)

18-5/8

(473)

TOP

REAR 10 22-7/8

(581)

12-5/16

(313)

18-13/16

(478)

16-3/16

(411)

10

(254)

4-1/2

(114)

18 5/8

(473)

15 x11

TOP

FRONT

10-15 27-7/8

(708)

3-1/2

(89)

14-7/8

(378)

16-3/16

(411)

10

(254)

1-1/2

(38) 14-11/16

(373)

20 4-1/2

(114)

TOP

REAR 10-20 27-7/8

(708)

12-5/16

(313)

14-7/8

(378)

16-3/16

(411)

10

(254)

4-1/2

(114)

14-11/16

(373)

Front or Rear Air Supply

TOP OF UNIT

Blower Deck

FRONT OF UNIT

Blower Duct Flange Location

Duct Flanges on Three Blower

76"

(1930.4)

ref

35"

(889)

ref.

122" (3098.8) ref.

AB

C

E

C

D

F

GE

DPN000532 Rev0

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12

2.4 Piping

All fluid and refrigeration connections to the unit, with the exceptions of the condensate drain and

live steam, are sweat copper. Factory-installed piping brackets must not be removed. Field-installed

piping must be installed in accordance with local codes and must be properly assembled, supported,

isolated and insulated. Avoid piping runs through noise-sensitive areas, such as office walls and con-

ference rooms.

Refer to specific text and detailed diagrams in this manual for other unit-specific piping requirements

2.4.1 Drain Line

A 3/4" NPT is provided for the evaporator coil condensate drain. This drain line also drains the

humidifier, if applicable. The drain line must be located so it will not be exposed to freezing tempera-

tures. The drain should be at least the full size of the drain connection and pitched a minimum of 1/8"

per ft. (11mm per meter).

2.4.2 Piping Considerations for Raised-Floor Applications

All piping below the elevated floor must be located so that it offers the least resistance to air flow.

Careful planning of the piping layout under the raised floor is required to prevent the air flow from

being blocked. When installing piping on the subfloor, it is recommended that the pipes be mounted in

a horizontal plane rather than stacked one above the other. Whenever possible, the pipes should be

run parallel to the air flow.

2.5 Electrical Connections

Three-phase electrical service is required for all models in either 208, 230, 460 or 575V, 60Hz; or 200,

230 or 400V, 50 Hz. Electrical service shall conform to national and local electrical codes.

Install a manual electrical disconnect switch within 5 feet (1.6 m) of the unit in accordance with

codes. A factory-supplied disconnect switch may be factory-mounted within the unit and accessible

from the exterior.

NOTE

This line may contain boiling water. Use copper or other suitable material for the drain line.

For units without a condensate pump

The unit is shipped from the factory with an internally-mounted trap. No external trap is

required. The drain line must comply with all applicable codes.

For units with a factory-installed condensate pump option

The unit is shipped from the factory with a condensate pump installed. The condensate pump

discharge (drain) line must comply with all applicable codes.

For units with a field-installed condensate pump

The unit is shipped from the factory with the condensate pump option, unmounted in the unit,

which must be installed in the field. The unit has an internally mounted trap. The drain line

from the unit to the condensate pump does not require a trap. The discharge (drain) line from

the pump must comply with all applicable codes.

DISCONTINUED

PRODU C T

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Emerson Liebert Deluxe System 3 DX Installation guide

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Emerson Liebert Deluxe System 3 DX Installation guide

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